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Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 606 · 40 questions
TalentJR

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

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  1. 1.🔦 Which of these is translucent? (a) a wooden board (b) a book (c) frosted glass (d) your hand
  2. 2.🧺 Which of these is not needed for the shadow clock? (a) chalk to mark shadows (b) a sunny open place (c) a balloon (d) a straight stick
  3. 3.True or false: a steel plate is opaque. (a) True (b) False
  4. 4.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) missing (d) long
  5. 5.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) brighter (b) coloured (c) smaller (d) bigger
  6. 6.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) yeast (c) a balloon (d) a straight stick
  7. 7.🌞 When is a stick’s shadow the shortest? (a) early morning (b) around noon (c) late evening (d) at night
  8. 8.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) mark with chalk (c) look straight at the Sun (d) wear a cap
  9. 9.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
  10. 10.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “shadow length”? (a) we change it (b) we keep it the same (c) we measure it
  11. 11.🔍 Which is the odd one out? (a) a wooden board (b) a book (c) your hand (d) clear glass
  12. 12.🧺 Which of these is not needed for the shadow clock? (a) a battery cell (b) a sunny open place (c) a straight stick (d) chalk to mark shadows
  13. 13.True or false: frosted glass is translucent. (a) False (b) True
  14. 14.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) shadow length (c) the same stick (d) the time of day
  15. 15.🔦 Is your hand opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  16. 16.🧺 Do we need a balloon for the shadow clock? (a) not needed (b) needed
  17. 17.🔦 Is a wooden board opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
  18. 18.🔦 Is oily paper opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  19. 19.🧺 Do we need a clock to check for the shadow clock? (a) needed (b) not needed
  20. 20.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
  21. 21.True or false: your hand is translucent. (a) True (b) False
  22. 22.🔦 Is clean water opaque, translucent or transparent? (a) opaque (b) translucent (c) transparent
  23. 23.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) up (b) north (c) west (d) east
  24. 24.True or false: tissue paper is translucent. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) frosted glass (b) oily paper (c) tissue paper (d) air
  26. 26.🧺 Which of these is not needed for the shadow clock? (a) a clock to check (b) a magnet (c) chalk to mark shadows (d) a sunny open place
  27. 27.🧺 Do we need turmeric powder for the shadow clock? (a) needed (b) not needed
  28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) shadow length (b) the time of day (c) the same spot (d) the stick kept upright
  29. 29.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) a raincoat (c) nothing on your head (d) a cap or hat
  30. 30.🔦 Is air opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
  31. 31.True or false: a magnet is not needed for the shadow clock. (a) True (b) False
  32. 32.🧺 Do we need chalk to mark shadows for the shadow clock? (a) not needed (b) needed
  33. 33.🔦 Which of these is opaque? (a) air (b) a wooden board (c) clear glass (d) tissue paper
  34. 34.🧺 Which of these is not needed for the shadow clock? (a) turmeric powder (b) a sunny open place (c) chalk to mark shadows (d) a clock to check
  35. 35.🔍 Which is the odd one out? (a) butter paper (b) a brick (c) a steel plate (d) a wooden board
  36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the time of day”? (a) we measure it (b) we change it (c) we keep it the same
  37. 37.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a battery cell (c) a mirror (d) turmeric powder
  38. 38.True or false: your hand is transparent. (a) True (b) False
  39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the stick kept upright”? (a) we change it (b) we keep it the same (c) we measure it
  40. 40.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is kept the same? (a) the same spot (b) shadow length (c) the time of day

Answer key

  1. frosted glass
  2. a balloon
  3. True
  4. long
  5. bigger
  6. a straight stick
  7. around noon
  8. look straight at the Sun
  9. not needed
  10. we measure it
  11. clear glass
  12. a battery cell
  13. True
  14. shadow length
  15. opaque
  16. not needed
  17. opaque
  18. translucent
  19. needed
  20. not needed
  21. False
  22. transparent
  23. west
  24. True
  25. air
  26. a magnet
  27. not needed
  28. the time of day
  29. a cap or hat
  30. transparent
  31. True
  32. needed
  33. a wooden board
  34. turmeric powder
  35. butter paper
  36. we change it
  37. a clock to check
  38. False
  39. we keep it the same
  40. the same spot

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